Optional Int32 attribute.
Specifies the maximum number of seconds that a request is allowed to execute before being automatically shut down by ASP.NET.This time-out applies only if the debug attribute in the compilation element is False. If the debug attribute is True, to help avoiding application shut-down while you are debugging, do not set this time-out to a large value.The default is 110. In the .NET Framework 1.0 and 1.1, the default is 90 seconds.